Two counters I am often cought with (Guard Passing)
I usually try to pass open guard by pining one of my opponent's shin to my hips, and controlling that leg with both hands. Very similar to the video below:
YouTube - BJJ and Catch Wrestling Leg Lock Guard Pass
There are two very common counters that seem to work on me:
1. Kimura - I always seem to get caught in it. Sometimes I get tapped, but most of the time I just have to defend it and start my guard pass all over again. I also get swept with this move. There have been times when I managed to counter the kimura by spinning around to the armbar, but it only works when I am already mostly passed the guard.
2. The leg that isn't trapped is used to come over my back, and I either get my back taken, or swept. There have been times that I have been caught in a triangle this way.
Is the guard pass above simply not effective, or am I missing some minor details that are allowing my sparring partners to counter this type of guard pass easily?